CODEWITHSUNDEEP
elasticsearchelasticsearch-pluginelasticsearch-5
srikanth nagineni
srikanth nagineni

Reputation: 561

elasticsearch highlight text between two special characters

I need highlight text between the two commas or full stops(.) If the length of the sentences is more than 100 and 500. I need whole highlighted text. Is there any way to get the highlighted sentence from the Elasticsearch.

Upvotes: 1

Views: 726

Answers (1)

aclowkay
aclowkay

Reputation: 3887

I don't have a solution. Just a general idea. You can tokenize "." as PERIOD_START,PERIODD_END and "," as COMMA, than look use proxmity relevancy with descending order. So the farther away PERIOD_START is from PERIOD_END the better the score, and we reverse that.Not sure how to filter exact distance

And you can use highlighter to highlight PERIOD_START with pre_tag and post tag = ["","<b>], and PERIOD_END with pre_tag and post_tag = ["</br>","<b>"]

For example,

Hello I'm Alex END_PERIOD,START_PERIOD Joshua is a very cool dude and I think He is Okay quite END_PERIOD,START_PERIOD

Will turn into

Hello I'm Alex END_PERIOD,(empty tag)START_PERIOD <b> Joshua is a very cool dude and I think He is Okay quite </b>END_PERIOD (empty tag),START_PERIOD

proximity https://www.elastic.co/guide/en/elasticsearch/guide/current/proximity-relevance.html

highlight https://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-highlighting.html#highlight-source

Upvotes: 1

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